I think the real issue is that the autocomplete shouldn't happen on a hyphen. This happened to me so much when typing objects in PHP that CodeIntel became an unusable plug-in. I was told by the plug-in's creator that it's an ST2 API issue https://github.com/Kronuz/SublimeCodeIntel/issues/5#issuecomment-2150998. It stinks because CodeIntel is very handy when trying to dig through classes.